package exception;

import java.io.FileOutputStream;
import java.io.IOException;

public class FinallyDemo2 {
    public static void main(String[] args) {
        System.out.println("程序开始了");
        FileOutputStream fos=null;
        try {
            fos=new  FileOutputStream("books.txt");
        }catch (Exception e){
            System.out.println();
        }finally {
            try {
                fos.close();
            } catch (IOException e) {
                System.out.println();
            }
        }

    }
}
